2-3
MB Intelligent Tweaker(M.I.T.)
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster
CPU Clock Ratio (Note 1)
Fine CPU Clock Ratio (Note 1)
CPU Frequency
[Auto]
[7X]
[+0.5]
2.50GHz(333x7.5)
******** Clock Chip Control ********
>>>>> Standard Clock Control
CPU Host Clock Control
x CPU Host Frequency (Mhz)
PCI Express Frequency (Mhz)
C.I.A. 2
>>>>> Advanced Clock Control
` Advanced Clock Control
Item Help
Menu Level`
[Disabled]
333
[Auto]
[Disabled]
[Press Enter]
******** DRAM Performance Control ********
Performance Enhance
[Turbo]
Extreme Memory Profile (X.M.P.) (Note 2)
[Disabled]
(G)MCH Frequency Latch
[Auto]
System Memory Multiplier
(SPD)
[Auto]
KLJI: Move
Enter: Select
F5: Previous Values
+/-/PU/PD: Value
F6: Fail-Safe Defaults
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
MB Intelligent Tweaker(M.I.T.)
x
x
x
x
`
Memory Frequency (Mhz)
DRAM Timing Selectable
>>>>> Standard Timing Control
CAS Latency Time
tRCD
tRP
tRAS
>>>>> Advanced Timing Control
Advanced Timing Control
800
(SPD)
800
[Auto]
4
4
4
11
Auto
Auto
Auto
Auto
Item Help
Menu Level`
[Press Enter]
******** Mother Board Voltage Control ********
Voltage Types
Normal Current
----------------------------------------------------------------->>> CPU
CPU Vcore
1.12500V [Auto]
CPU Termination
1.200V
[Auto]
CPU PLL
1.500V
[Auto]
CPU Reference
0.760V
[Auto]
>>> MCH/ICH
KLJI: Move
Enter: Select
F5: Previous Values
+/-/PU/PD: Value
F6: Fail-Safe Defaults
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
(Note 1) This item appears only if you install a CPU that supports this feature.
(Note 2) This item appears only if you install a memory module that supports this feature.
- 39 -
BIOS Setup
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
MB Intelligent Tweaker(M.I.T.)
MCH Core
MCH Reference
MCH/DRAM Reference
ICH I/O
>>> DRAM
DRAM Voltage
DRAM Termination
Channel A Reference
Channel B Reference
KLJI: Move
Enter: Select
F5: Previous Values
1.100V
0.760V
0.900V
1.500V
[Auto]
[Auto]
[Auto]
[Auto]
1.800V
0.900V
0.900V
0.900V
[Auto]
[Auto]
[Auto]
[Auto]
+/-/PU/PD: Value
F6: Fail-Safe Defaults
Item Help
Menu Level`
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
Whether the system will work stably with the overclock/overvoltage settings you made is
dependent on your overall system configurations. Incorrectly doing overclock/overvoltage
may result in damage to CPU, chipset, or memory and reduce the useful life of these
components. This page is for advanced users only and we recommend you not to alter the
default settings to prevent system instability or other unexpected results. (Inadequately alter
ing the settings may result in system's failure to boot. If this occurs, clear the CMOS values
and reset the board to default values.)
Robust Graphics Booster
Robust Graphics Booster (R.G.B.) helps to enhance the performance of the graphics chip and
memory. Auto allows the BIOS to automatically set the R.G.B. mode based on system
configurations. Options are: Auto (default), Fast, Turbo.
CPU Clock Ratio (Note)
Allows you to alter the clock ratio for the installed CPU.
The item is present only if a CPU with unlocked clock ratio is installed.
Fine CPU Clock Ratio (Note)
Allows you to increase the CPU clock ratio set in the CPU Clock Ratio item above by 0.5.
CPU Frequency
Displays the current operating CPU frequency.
******** Clock Chip Control ********
>>>>> Standard Clock Control
CPU Host Clock Control
Enables or disables the control of CPU host clock. Enabled will allow the CPU Host Frequency
item below to be configurable. Note: If your system fails to boot after overclocking, please wait for
20 seconds to allow for automated system reboot, or clear the CMOS values to reset the board to
default values. (Default: Disabled)
(Note) This item appears only if you install a CPU that supports this feature.
GA-EP45-DS3R/DS3 Motherboard
- 40 -
CPU Host Frequency (Mhz)
Allows you to manually set the CPU host frequency. This item is configurable only if the CPU
Host Clock Control option is enabled. The adjustable range is from 100 MHz to 1200 MHz.
For an 800 MHz FSB CPU, set this item to 200 MHz.
For a 1066 MHz FSB CPU, set this item to 266 MHz.
For a 1333 MHz FSB CPU, set this item to 333 MHz.
For a 1600 MHz FSB CPU, set this item to 400 MHz.
Important It is highly recommended that the CPU frequency be set in accordance with the CPU
specifications.
PCI Express Frequency (Mhz)
Allows you to manually set the PCIe clock frequency. The adjustable range is from 90 MHz to
150 MHz. Auto sets the PCIe clock frequency to standard 100 MHz. (Default: Auto)
C.I.A.2
CPU Intelligent Accelerator 2 (C.I.A.2) is designed to automatically adjust CPU computing power
to maximize system performance. C.I.A.2 allows your system bus to be changed dynamically
based on CPU loading through the use of 5 preset states.
Note: System stability varies, depending on your system hardware components.
Disabled
Disables the use of C.I.A.2. (Default)
Cruise
Increases CPU frequency by 5% or 7% depending on CPU loading.
Sports
Increases CPU frequency by 7% or 9% depending on CPU loading.
Racing
Increases CPU frequency by 9% or 11% depending on CPU loading.
Turbo
Increases CPU frequency by 15% or 17% depending on CPU loading.
Full Thrust
Increases CPU frequency by 17% or 19% depending on CPU loading.
Warning: Before using C.I.A.2, please first verify the overclocking capability of your CPU.
As stability is highly dependent on system components, when system instability occurs after
overclocking, lower the overclocking ratio.
>>>>>
Advanced Clock Control
Advanced Clock Control
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
Advanced Clock Control
CPU Clock Drive
PCI Express Clock Drive
CPU Clock Skew
MCH Clock Skew
KLJI: Move
Enter: Select
F5: Previous Values
[800mV]
[900mV]
[0ps]
[0ps]
+/-/PU/PD: Value
F6: Fail-Safe Defaults
- 41 -
Item Help
Menu Level`
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
BIOS Setup
CPU Clock Drive
Allows you to adjust the amplitude of the CPU and North Bridge clock.
Options are: 700mV, 800mV (default), 900mV, 1000mV.
PCI Express Clock Drive
Allows you to adjust the amplitude of the PCI Express and North Bridge clock.
Options are: 700mV, 800mV, 900mV (default), 1000mV.
CPU Clock Skew
Allows you to set the CPU clock prior to the North Bridge clock.
Options are: 0ps~750ps. (Default: 0ps)
MCH Clock Skew
Allows you to set the North Bridge clock prior to the CPU clock.
Options are: 0ps~750ps. (Default: 0ps)
********
DRAM Performance Control
********
Performance Enhance
Allows the system to operate at three different performance levels.
Standard
Lets the system operate at its basic performance level.
Turbo
Lets the system operate at its good performance level. (Default)
Extreme
Lets the system operate at its best performance level.
Extreme Memory Profile (X.M.P.) (Note)
Allows the BIOS to read the SPD data on XMP memory module(s) to enhance memory performance
when enabled.
Disabled
Disables this function. (Default)
Profile1
Uses Profile 1 settings.
Profile2
Uses Profile 2 settings.
(G)MCH Frequency Latch
Allows you to fix the chipset frequency at system bootup. Options for adjusting memory multiplier
below may differ according to the fixed frequency. Options are: Auto (default), 200MHz, 266MHz,
333MHz, 400MHz.
System Memory Multiplier (SPD)
Allows you to set the system memory multiplier. Options are dependent on CPU FSB and the
(G)MCH Frequency Latch settings. Auto sets memory multiplier according to memory SPD
data. (Default: Auto)
Memory Frequency (Mhz)
The first memory frequency value is the normal operating frequency of the memory being used;
the second is the memory frequency that is automatically adjusted according to the CPU Host
Frequency (Mhz) and System Memory Multiplier settings.
DRAM Timing Selectable (SPD)
Manual allows all DRAM Timing items below to be configurable.
Options are: Auto (default), Manual.
(Note) This item appears only if you install a memory module that supports this feature.
GA-EP45-DS3R/DS3 Motherboard
- 42 -
>>>>>
Standard Timing Control
CAS Latency Time
Options are: Auto (default), 3~7.
tRCD
Options are: Auto (default), 1~15.
tRP
Options are: Auto (default), 1~15.
tRAS
Options are: Auto (default), 1~63.
>>>>>
Advanced Timing Control
Advanced Timing Control
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
Advanced Timing Control
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
tRRD
tWTR
tWR
tRFC
tRTP
Command Rate (CMD)
>>>>> Channel A
Static tRead Value
tRD Phase0 Adjustment
tRD Phase1 Adjustment
tRD Phase2 Adjustment
tRD Phase3 Adjustment
Trd2rd(Different Rank)
Twr2wr(Different Rank)
Twr2rd(Different Rank)
Trd2wr(Same/Diff Rank)
>>>>> Channel B
Static tRead Value
tRD Phase0 Adjustment
KLJI: Move
Enter: Select
F5: Previous Values
2
2
4
20
2
0
Auto
Auto
Auto
Auto
Auto
Auto
6
1
0
1
1
6
6
5
8
Auto
Auto
Auto
Auto
Auto
Auto
Auto
Auto
Auto
6
1
Auto
Auto
+/-/PU/PD: Value
F6: Fail-Safe Defaults
Item Help
Menu Level`
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
Advanced Timing Control
x
x
x
x
x
x
x
tRD Phase1 Adjustment
tRD Phase2 Adjustment
tRD Phase3 Adjustment
Trd2rd(Different Rank)
Twr2wr(Different Rank)
Twr2rd(Different Rank)
Trd2wr(Same/Diff Rank)
KLJI: Move
Enter: Select
F5: Previous Values
0
1
1
6
6
5
8
Auto
Auto
Auto
Auto
Auto
Auto
Auto
+/-/PU/PD: Value
F6: Fail-Safe Defaults
- 43 -
Item Help
Menu Level`
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
BIOS Setup
********
Advanced Timing Control
********
tRRD
Options are: Auto (default), 1~15.
tWTR
Options are: Auto (default), 1~31.
tWR
Options are: Auto (default), 1~31.
tRFC
Options are: Auto (default), 1~255.
tRTP
Options are: Auto (default), 1~15.
Command Rate(CMD)
Options are: Auto (default), 1~3.
>>>>> Channel A
Static tRead Value
Options are: Auto (default), 1~15.
tRD Phase0 Adjustment
Options are: Auto (default), 0-Normal, 1-Advanced.
tRD Phase1 Adjustment
Options are: Auto (default), 0-Normal, 1-Advanced.
tRD Phase2 Adjustment
Options are: Auto (default), 0-Normal, 1-Advanced.
tRD Phase3 Adjustment
Options are: Auto (default), 0-Normal, 1-Advanced.
Trd2rd(Different Rank)
Options are: Auto (default), 1~15.
Twr2wr(Different Rank)
Options are: Auto (default), 1~15.
Twr2rd(Different Rank)
Options are: Auto (default), 1~15.
Trd2wr(Same/Diff Rank)
Options are: Auto (default), 1~15.
>>>>> Channel B
Static tRead Value
Options are: Auto (default), 1~15.
tRD Phase0 Adjustment
Options are: Auto (default), 0-Normal, 1-Advanced.
tRD Phase1 Adjustment
Options are: Auto (default), 0-Normal, 1-Advanced.
tRD Phase2 Adjustment
Options are: Auto (default), 0-Normal, 1-Advanced.
GA-EP45-DS3R/DS3 Motherboard
- 44 -
tRD Phase3 Adjustment
Options are: Auto (default), 0-Normal, 1-Advanced.
Trd2rd(Different Rank)
Options are: Auto (default), 1~15.
Twr2wr(Different Rank)
Options are: Auto (default), 1~15.
Twr2rd(Different Rank)
Options are: Auto (default), 1~15.
Trd2wr(Same/Diff Rank)
Options are: Auto (default), 1~15.
******** Mother Board Voltage Control
>>> CPU
********
CPU Vcore
The default is Auto.
CPU Termination
The default is Auto.
CPU PLL
The default is Auto.
CPU Reference
>>>
The default is Auto.
MCH/ICH
MCH Core
The default is Auto.
MCH Reference
The default is Auto.
MCH/DRAM Reference
The default is Auto.
ICH I/O
The default is Auto.
>>> DRAM
DRAM Voltage
The default is Auto.
DRAM Termination
The default is Auto.
Channel A Reference
The default is Auto.
Channel B Reference
The default is Auto.
- 45 -
BIOS Setup
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